<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- table表格 -->
      <el-table :data="goodlist" style="width: 100%" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column prop="goods_name" label="商品名称" width="width"></el-table-column>
        <el-table-column prop="goods_price" label="商品价格(元)" width="95px"></el-table-column>
        <el-table-column prop="goods_weight" label="商品重量" width="70px"></el-table-column>
        <el-table-column prop="add_time" label="商品创建时间" width="140px">
          <template slot-scope="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.goods_id)"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum" :page-sizes="[5, 10, 15, 20]" :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper" :total="total" background>
      </el-pagination>
    </el-card>
    <!-- 修改对话框 -->
    <el-dialog title="修改基础信息" :visible.sync="editDialogVisible" width="50%" @close="editDialogclosed">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="100px">
        <el-form-item label="商品名称" prop="goods_name">
          <el-input v-model="editForm.goods_name"></el-input>
        </el-form-item>
        <el-form-item label="商品价格" prop="goods_price">
          <el-input v-model="editForm.goods_price" type="number"></el-input>
        </el-form-item>
        <el-form-item label="商品数量" prop="goods_number">
          <el-input v-model="editForm.goods_number" type="number"></el-input>
        </el-form-item>
        <el-form-item label="商品重量" prop="goods_weight">
          <el-input v-model="editForm.goods_weight" type="number"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editInfo">确 定</el-button>
      </span>
   </el-dialog>
  </div>
</template>
<script type="text/ecmascript-6">
export default {
  name:'List', 
  data() {
    return {
      //查询参数对象
      queryInfo:{
        query:'',
        pagenum:1,
        pagesize:10
      },
      //商品列表
      goodlist:[],
      total:0,
      //显示修改对话框
      editDialogVisible:false,
      //修改的表单数据
      editForm:{},
      editFormRules:{
        goods_name:[
          {required:true,message:"请输入商品名称",trigger:'blur'}
        ]
      }
    }
},
  components:{},
  created(){
    this.getGoodList()
  },
  methods:{
    //获取商品列表
    getGoodList(){
      this.$http.get("goods",{
        params:this.queryInfo
      }).then(({data:res})=>{
        if(res.meta.status !== 200){
          return this.$message.error("获取商品列表失败！")
        }
        this.goodlist = res.data.goods
        this.total = res.data.total
        console.log(res.data)
      })
    },
    //每页条数改变
    handleSizeChange(newSize){
      this.queryInfo.pagesize = newSize
      this.getGoodList()
    },
    //页码发生改变
    handleCurrentChange(newPage){
      this.queryInfo.pagenum = newPage
      this.getGoodList()
    },
    //删除商品
    removeById(id){
      this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(async() => {
          const {data:res} = await this.$http.delete(`goods/${id}`)
          if(res.meta.status !== 200){
            return this.$message.success("删除失败！")
          }
          this.$message({
            type: 'success',
            message: '删除成功!'
          })
          this.getGoodList()
        }).catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除'
          })       
        })
    },
    //添加商品
    goAddpage(){
      this.$router.push("/goods/add")
    },
    //显示编辑对话框
    async showEditDialog(id){
      const {data:res} =await this.$http.get(`goods/${id}`)
      if(res.meta.status !== 200){
        return this.$message.error("获取商品信息失败！")
      }

      this.editForm = res.data
      this.editDialogVisible = true
      console.log(this.editForm)
    },
    editDialogclosed(){
      this.$refs.editFormRef.resetFields()
    },
    //修改对话框确认按钮
    editInfo(){
      this.$refs.editFormRef.validate(async (valid)=>{
        if(!valid) return
        const {data:res} = await this.$http.put(`goods/${this.editForm.goods_id}`,this.editForm)
        if(res.meta.status !== 200){
          return this.$message.error("修改商品信息失败！")
        }
        this.$message.success("修改商品信息成功！")
        this.getGoodList()
        this.editDialogVisible = false
      })
    }
  }
}
</script>
<style lang="scss" scoped>
</style>